75032540 has 24 divisors (see below), whose sum is σ = 171893232. Its totient is φ = 27284480.

The previous prime is 75032527. The next prime is 75032569. The reversal of 75032540 is 4523057.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170309 + ... + 170748.

It is an arithmetic number, because the mean of its divisors is an integer number (7162218).

Almost surely, 2^75032540 is an apocalyptic number.

It is an amenable number.

75032540 is an abundant number, since it is smaller than the sum of its proper divisors (96860692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75032540 is a wasteful number, since it uses less digits than its factorization.

75032540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341077 (or 341075 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 75032540 is about 8662.1325318884. The cubic root of 75032540 is about 421.7773133857. Note that the first 3 decimals are identical.

Adding to 75032540 its reverse (4523057), we get a palindrome (79555597).

The spelling of 75032540 in words is "seventy-five million, thirty-two thousand, five hundred forty".